Award Data

Applied Physical Sciences Corp. (APS) will develop a deployable marine mammal mitigation system. The system will use vector hydrophones to passively detect, track, classify, and localize vocalizing mammals. Wavelet and conventional spectral analysis methods will be coupled to species-specific tracking algorithms. Behavioral clues from the acoustic data will be used to further reduce false alarm ...

Existing multistatic airborne ASW systems require high power sources and are unable to exploit the significant forward scattering strength of a submarine target due to the blinding presence of the direct blast. Time reversal (TR) is a recent method for focusing acoustic energy at a point using pairs of source and receive arrays. The TR focus provides a measure of propagation channel stability, al ...

The overall intent of this project is to develop a series of vector sensors for thin-line submarine towed array applications and down-select one for full evaluation via a comprehensive test campaign. Once the sensor is perfected, a production run of eight sensors will be performed so that a thin-line towed array section can be fabricated and tested. Each vector sensor under consideration will co ...

The overall intent of this project is to develop a triaxial pressure-acceleration vector sensor that is suitable for reliable acoustic path sensing. The sensor is intended to have a nominal size that is commensurate with an AN/SSQ-53 DIFAR sonobuoy wet-end transducer, have a 6 km submergence depth rating, and exhibit a noise floor of nominally 40 dB re 1 micro-pascals-squared per hertz. This is ...

Environmental degradation of aerospace turbine components is a major concern for aircraft and power generation systems, and various surface treatments are utilized to extend the lifetimes of these critical components. This Phase II project is targeted toward extending the durability of thermal barrier coatings (TBCs) on hot section turbine components. TBCs are highly susceptible to degradation b ...

One of the most important problems encountered in an electromagnetic environment is that of providing compatibility between radiating and receiving RF equipment within the environment. This problem is a type of EMI and the goal of RF system designers and analysts is to achieve EMC where no interference problems exist. We propose to develop a software tool named Electromagnetic Interference Toolki ...

Modern aircraft include numerous RF systems and associated antennas of diverse types. The designed performance of antennas is typically degraded by their installation on the airframe. Also, the presence of many RF systems in a small region creates enormous opportunity for undesired interference via antenna-to-antenna coupling. These conditions present serious challenges for engineers tasked with i ...

A fully coupled fire simulation and thermal-mechanical response and damage prediction tool will be developed by enhancing, packaging, and integrating our existing solution modules as an add-on tool kit for a commercial finite element solver such as ABAQUS. This tool will for the first time be able to model the fluid-structure coupled response of an advanced ship structure to a fire environment and ...

This program is intended to advance the state-of-the-art d36 shear mode projector. Phase I of this effort produced a projector which demonstrates promising bandwidth and source level, especially considering its compact size. It is also the first known d36 underwater projector in the history of piezoelectrics. To develop a robust, high power, and broad bandwidth d36 shear mode projector array and b ...

Precision Combustion, Inc. (PCI) proposes to develop a breakthrough Microlith short-contact-time catalytic steam reformer (CSR) system for reforming logistics fuels to hydrogen for a 50 kWe fuel cell. This technology offers to achieve high efficiency in steam reforming in a system that is remarkably smaller and more lightweight than current steam reformers. In addition water requirement should b ...